Investigating the formation of sulphur trioxide and nitrogen oxides in a furnace with intersecting jets in a gas/oil-fired boiler

Journal Article · Mon Jan 01 00:00:00 EST 1979 · Therm. Eng. (USSR) (Engl. Transl.); (United States)

OSTI ID:5286109

Izyumov, M A; Roslyakov, P V; Shabanov, I I; Senilova, Z K; Enyakin, B P; Kryukov, A D; Danchenko, Yu E; Lavrov, E S; Mavlyuberdinov, A A

One means of reducing the SO/sub 3/ and NO/sub x/ contents of flue gases to protect the environment and to reduce low-temperature corrosion of heating surfaces when burning oils of high sulfur content is to adopt the specific form of combustion process in furnaces with intersecting jets. In design, these furnaces are two-chamber units with a high heat release rate, with a vortex combustion arrangement in the extension furnace. In these furnaces chemical reaction of the fuel takes place in a medium which is very much diluted with furnace gases due to the supply of gases to the root of the flame and the intensive mixing of the ejected gases with the primary fuel/air mixture issuing from the burners. This to a considerable extent suppresses chain generation of atomic oxygen which in turn reduces the formation of sulfur trioxide and nitrogen oxides. Apart from the internal recirculation, as a result of mass transfer of the flows interacting in the furnace, in the BKZ 320-140GM6 boiler which was investigated there were lines for external recirculation with flue gases being bled off after the economizer into the air supply entering the burners. Use of the external recirculation lines proved to have a considerable effect in reducing heat fluxes in the furnace and in improving superheat control. Thus, with this particular combustion arrangement one can solve the complex of problems involving reliable operation of heating surfaces and protection of the environment.

• OSTI ID: 5286109
• Journal Information: Therm. Eng. (USSR) (Engl. Transl.); (United States), Vol. 26:11; Other Information: Translated from Teploenergetika (Moscow); 26: No. 11, 60-63(1979)
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
BOILERS
FLUE GAS
NITROGEN OXIDES
AIR POLLUTION ABATEMENT
SULFUR OXIDES
THERMAL POWER PLANTS
COMBUSTION CHAMBERS
CORROSION
ENVIRONMENTAL EFFECTS
FUEL GAS
FUEL OILS
JETS
POLLUTION CONTROL EQUIPMENT
SURFACES
CHALCOGENIDES
CHEMICAL REACTIONS
EQUIPMENT
FLUIDS
FUELS
GAS FUELS
GASEOUS WASTES
GASES
NITROGEN COMPOUNDS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION ABATEMENT
POWER PLANTS
SULFUR COMPOUNDS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions